JEE Main 5 April 2024 Shift 1 Question Paper with Answers
5 April 2024 · April session · 90 questions
The complete JEE Main 5 April 2024 Shift 1 paper — all 90 questions with the correct answer for each, tagged to the chapter it tests. Free to read, no account needed.
Physics
30
Chemistry
30
Mathematics
30
Physics — JEE Main 5 April 2024 Shift 1
Q1·PhysicsSingle correct
Light emerges out of a convex lens when a source of light is kept at its focus. The shape of wavefront of the light is:
(A)Both spherical and cylindrical
(B)Cylindrical
(C)Spherical
(D)Plane
Q2·PhysicsSingle correct
A combination of logic gates is connected in a complete suitable circuit (shown in the figure). For which of the following input combinations will the bulb glow (ON)?
(A)A = 0, B = 1, C = 1, D = 1
(B)A = 1, B = 0, C = 0, D = 0
(C)A = 0, B = 0, C = 0, D = 1
(D)A = 1, B = 1, C = 1, D = 0
Q3·PhysicsSingle correct
If G is the gravitational constant and u is the energy density then which of the following quantity has the same dimensions as uG:
(A)Pressure gradient per unit mass
(B)Force per unit mass
(C)Gravitational potential
(D)Energy per unit mass
Q4·PhysicsSingle correct
Given below are two statements:
Statement-I: When a capillary tube is dipped into a liquid, the liquid neither rises nor falls in the capillary. The contact angle may be 90∘.
Statement-II: The contact angle between a solid and a liquid is a property of the material of the solid and liquid as well.
In the light of the above statements, choose the correct answer from the options given below.
(A)Statement-I is false and Statement-II is true.
(B)Both Statement-I and Statement-II are true.
(C)Both Statement-I and Statement-II are false.
(D)Statement-I is true and Statement-II is false.
Q5·PhysicsSingle correct
Given below are two statements:
Statement-I: The figure shows the variation of stopping potential with frequency (ν) for two photosensitive materials M1 and M2. The slope gives the value of eh, where h is Planck’s constant and e is the charge of the electron.
Statement-II: M2 will emit photoelectrons of greater kinetic energy for incident radiation having the same frequency.
In the light of the above statements, choose the most appropriate answer from the options given below.
(A)Statement-I is correct and Statement-II is incorrect.
(B)Statement-I is incorrect but Statement-II is correct.
(C)Both Statement-I and Statement-II are incorrect.
(D)Both Statement-I and Statement-II are correct.
Q6·PhysicsSingle correct
The angle between vector Q and the resultant of (2Q+2P) and (2Q−2P) is:
(A)0∘
(B)tan−1(2Q+2P2Q−2P)
(C)tan−1(QP)
(D)tan−1(P2Q)
Q7·PhysicsSingle correct
In a hydrogen-like system the ratio of the Coulomb force and the gravitational force between an electron and a proton is of the order of:
(A)1039
(B)1019
(C)1029
(D)1036
Q8·PhysicsSingle correct
In a coaxial straight cable, the central conductor and the outer conductor carry equal currents in opposite directions. The magnetic field is zero:
(A)inside the outer conductor
(B)in between the two conductors
(C)outside the cable
(D)inside the inner conductor
Q9·PhysicsSingle correct
An electron rotates in a circle around a nucleus having positive charge Ze. The correct relation between the total energy (E) of the electron and its potential energy (U) is:
(A)E=2U
(B)2E=3U
(C)E=U
(D)2E=U
Q10·PhysicsSingle correct
If the collision frequency of hydrogen molecules in a closed chamber at 27∘C is Z, then the collision frequency of the same system at 127∘C is:
(A)23Z
(B)34Z
(C)32Z
(D)43Z
Q11·PhysicsSingle correct
The ratio of the radius of gyration of a hollow sphere to that of a solid cylinder of equal mass, for the moment of inertia about their diameter axis AB as shown in the figure, is x8. The value of x is:
(A)34
(B)17
(C)67
(D)51
Q12·PhysicsSingle correct
Two conducting circular loops A and B are placed in the same plane with their centres coinciding as shown in the figure (radius of A is a, radius of B is b, with b≫a). The mutual inductance between them is:
(A)2bμ0πa2
(B)2πμ0ab2
(C)2aμ0πb2
(D)2πμ0ba2
Q13·PhysicsSingle correct
Match List-I (energies of a planet of mass m in a circular orbit of radius a around the Sun of mass M; r = radius of the planet) with List-II (their expressions). Choose the correct answer from the options given below.
List-I
List-II
A.Kinetic energy of planet
I.aGMm
B.Gravitational potential energy of Sun–planet system
II.2aGMm
C.Total mechanical energy of planet
III.−aGMm
D.Escape energy at the surface of planet for a unit-mass object
IV.rGm
(A)(A)–II, (B)–I, (C)–IV, (D)–III
(B)(A)–III, (B)–IV, (C)–I, (D)–II
(C)(A)–I, (B)–IV, (C)–II, (D)–III
(D)(A)–I, (B)–II, (C)–III, (D)–IV
Q14·PhysicsSingle correct
A wooden block of mass 5 kg rests on a soft horizontal floor. When an iron cylinder of mass 25 kg is placed on top of the block, the floor yields and the block and cylinder together go down with an acceleration of 0.1ms−2. The action force of the system on the floor is equal to:
(A)297 N
(B)294 N
(C)291 N
(D)196 N
Q15·PhysicsSingle correct
A simple pendulum doing small oscillations at a place at height R above the earth’s surface has time period T1=4 s. T2 would be its time period if it is brought to a point at height 2R from the earth’s surface. Choose the correct relation [R = radius of Earth]:
(A)T1=T2
(B)2T1=3T2
(C)3T1=2T2
(D)2T1=T2
Q16·PhysicsSingle correct
A body of mass 50 kg is lifted to a height of 20 m from the ground in two different ways as shown in the figures. The ratio of the work done against gravity in the two respective cases will be:
(A)1 : 1
(B)2 : 1
(C)3:2
(D)1 : 2
Q17·PhysicsSingle correct
Time periods of oscillation of the same simple pendulum measured using four different measuring clocks were recorded as 4.62 s, 4.632 s, 4.6 s and 4.64 s. The arithmetic mean of these readings to the correct significant figures is:
(A)4.623 s
(B)4.62 s
(C)4.6 s
(D)5 s
Q18·PhysicsSingle correct
The heat absorbed by a system in going through the given cyclic process is:
(A)61.6 J
(B)431.2 J
(C)616 J
(D)19.6 J
Q19·PhysicsSingle correct
In the given figure R1=10Ω, R2=8Ω, R3=4Ω and R4=8Ω. The battery is ideal with emf 12 V. The equivalent resistance of the circuit and the current supplied by the battery are respectively:
(A)12Ω and 11.4A
(B)10.5Ω and 1.14A
(C)10.5Ω and 1A
(D)12Ω and 1A
Q20·PhysicsSingle correct
An alternating voltage of amplitude 40 V and frequency 4 kHz is applied directly across a capacitor of 12μF. The maximum displacement current between the plates of the capacitor is nearly:
(A)13 A
(B)8 A
(C)10 A
(D)12 A
Q21·PhysicsNumerical
In Young’s double slit experiment, carried out with light of wavelength 5000A˚, the distance between the slits is 0.3 mm and the screen is at 200 cm from the slits. The central maximum is at x=0 cm. The value of x for the third maximum is ___ mm.
Q22·PhysicsNumerical
A 2 A current-carrying straight metal wire of resistance 1Ω, resistivity 2×10−6Ωm, area of cross-section 10mm2 and mass 500 g is suspended horizontally in mid air by applying a uniform magnetic field B. The magnitude of B is ___ ×10−1 T (given g=10m/s2).
Q23·PhysicsNumerical
The electric field between the two parallel plates of a capacitor of 1.5μF capacitance drops to one third of its initial value in 6.6μs when the plates are connected by a thin wire. The resistance of this wire is ___ Ω. (Given log3=1.1.)
Q24·PhysicsNumerical
Three blocks M1, M2, M3 of masses 4 kg, 6 kg and 10 kg respectively hang from a smooth pulley using ropes 1, 2 and 3 in succession (rope 1 at the top carries all three, rope 2 carries M2 and M3, rope 3 carries M3). The tension T1 in rope 1 when they move upward with acceleration 2ms−2 is ___ N (with g=10m/s2).
Q25·PhysicsNumerical
The density and breaking stress of a wire are 6×104kg/m3 and 1.2×108N/m2 respectively. The wire is suspended from a rigid support on a planet where the acceleration due to gravity is 31 of the value on the surface of earth. The maximum length of the wire without breaking is ___ m (take g=10m/s2).
Q26·PhysicsNumerical
A body moves on a frictionless plane starting from rest. If Sn is the distance moved between t=n−1 and t=n and Sn−1 is the distance moved between t=n−2 and t=n−1, then the ratio SnSn−1 is (1−x2) for n=10. The value of x is ___.
Q27·PhysicsNumerical
If three helium nuclei combine to form a carbon nucleus, then the energy released in this reaction is ___ ×10−2 MeV. (Given 1u=931MeV/c2; atomic mass of helium = 4.002603 u; mass of carbon-12 = 12 u.)
Q28·PhysicsNumerical
An ac source V=502sin(100t) V is connected in a series LCR circuit with L=1 H, R=300Ω and C=20μF. The rms potential difference across the capacitor is ___ V.
Q29·PhysicsNumerical
In the experiment to determine the galvanometer resistance by the half-deflection method, the plot of θ1 versus the resistance R of the resistance box is shown in the figure. The figure of merit of the galvanometer is ___ ×10−1 A/division. [The source has emf 2 V.]
Q30·PhysicsNumerical
Three capacitors of capacitances 25μF, 30μF and 45μF are connected in parallel to a supply of 100 V. The energy stored in this combination is E. When these capacitors are connected in series to the same supply, the stored energy is x9E. The value of x is ___.
Chemistry — JEE Main 5 April 2024 Shift 1
Q31·ChemistrySingle correct
The incorrect postulates of Dalton's atomic theory are: (A) Atoms of different elements differ in mass. (B) Matter consists of divisible atoms. (C) Compounds are formed when atoms of different elements combine in a fixed ratio. (D) All the atoms of a given element have different properties including mass. (E) Chemical reactions involve reorganisation of atoms. Choose the correct answer from the options given below:
(A)(B), (D), (E) only
(B)(A), (B), (D) only
(C)(C), (D), (E) only
(D)(B), (D) only
Q32·ChemistrySingle correct
The following reaction occurs in the blast furnace where iron ore is reduced to iron metal: Fe2O3(s)+3CO(g)→2Fe(l)+3CO2(g). Using Le Chatelier’s principle, predict which one of the following will not disturb the equilibrium.
(A)Addition of Fe2O3
(B)Addition of CO2
(C)Removal of CO
(D)Removal of CO2
Q33·ChemistrySingle correct
Identify compound (Z) in the following reaction sequence (shown in the figure).
(A)(B), (D), (E) only
(B)(A), (B), (D) only
(C)(C), (D), (E) only
(D)All the atoms of given element have different
Q34·ChemistrySingle correct
Given below are two statements:
Assertion (A): Enthalpy of neutralisation of a strong monobasic acid with a strong monoacidic base is always −57 kJ mol−1.
Reason (R): Enthalpy of neutralisation is the amount of heat liberated when one mole of H+ ions furnished by the acid combine with one mole of OH− ions furnished by the base to form one mole of water.
In the light of the above statements, choose the correct answer from the options given below.
(A)(A) is true but (R) is false
(B)Both (A) and (R) are true and (R) is the correct explanation of (A)
(C)(A) is false but (R) is true
(D)Both (A) and (R) are true but (R) is not the correct explanation of (A)
Q35·ChemistrySingle correct
The statement(s) that are correct about the species O2−, F−, Na+ and Mg2+: (A) All are isoelectronic. (B) All have the same nuclear charge. (C) O2− has the largest ionic radius. (D) Mg2+ has the smallest ionic radius. Choose the most appropriate answer from the options given below:
For the compounds: (A) H3C-CH2-O-CH2-CH2-CH3, (B) H3C-CH2-CH2-CH2-CH2-CH3, (C) CH3-CH2-CO-CH2-CH3, (D) H3C-CH(OH)-CH2-CH2-CH3, the increasing order of boiling point is: Choose the correct answer from the options given below:
(A)(A) < (B) < (C) < (D)
(B)(B) < (A) < (C) < (D)
(C)(D) < (C) < (A) < (B)
(D)(B) < (A) < (D) < (C)
Q37·ChemistrySingle correct
Given below are two statements:
Statement I: In group 13, the stability of the +1 oxidation state increases down the group.
Statement II: The atomic size of gallium is greater than that of aluminium.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A)Statement I is incorrect but Statement II is correct
(B)Both Statement I and Statement II are correct
(C)Both Statement I and Statement II are incorrect
(D)Statement I is correct but Statement II is incorrect
Q38·ChemistrySingle correct
The number of σ and π bonds present in an ethylene molecule is respectively:
(A)3 and 1
(B)5 and 2
(C)4 and 1
(D)5 and 1
Q39·ChemistrySingle correct
Identify 'A' in the following reaction (shown in the figure).
(A)(1)
(B)(2)
(C)(3)
(D)(4)
Q40·ChemistrySingle correct
The reaction at the cathode in the cells commonly used in clocks involves:
(A)reduction of Mn from +4 to +3
(B)oxidation of Mn from +3 to +4
(C)reduction of Mn from +7 to +2
(D)oxidation of Mn from +7 to +2
Q41·ChemistrySingle correct
Which one of the following complexes will exhibit the least paramagnetic behaviour? [Atomic numbers: Cr = 24, Mn = 25, Fe = 26, Co = 27]
(A)[Co(H2O)6]2+
(B)[Fe(H2O)6]2+
(C)[Mn(H2O)6]2+
(D)[Cr(H2O)6]2+
Q42·ChemistrySingle correct
Given below are two statements:
Assertion (A): The cis form of an alkene is found to be more polar than the trans form.
Reason (R): The dipole moment of the trans isomer of 2-butene is zero.
In the light of the above statements, choose the correct answer from the options given below:
(A)Both (A) and (R) are true but (R) is not the correct explanation of (A)
(B)(A) is true but (R) is false
(C)Both (A) and (R) are true and (R) is the correct explanation of (A)
(D)(A) is false but (R) is true
Q43·ChemistrySingle correct
Given below are two statements:
Statement I: Nitration of benzene involves the following step: H-O-NO2→H2O+NO2+.
Statement II: Use of a Lewis base promotes the electrophilic substitution of benzene.
In the light of the above statements, choose the most appropriate answer from the options given below:
(A)Both Statement I and Statement II are incorrect
(B)Statement I is correct but Statement II is incorrect
(C)Both Statement I and Statement II are correct
(D)Statement I is incorrect but Statement II is correct
Q44·ChemistrySingle correct
The correct order of ligands arranged in increasing field strength is:
(A)Cl−<−OH<Br−<CN−
(B)F−<Br−<I−<NH3
(C)Br−<F−<H2O<NH3
(D)H2O<−OH<CN−<NH3
Q45·ChemistrySingle correct
Which of the following gives a positive test with ninhydrin?
(A)Cellulose
(B)Starch
(C)Polyvinyl chloride
(D)Egg albumin
Q46·ChemistrySingle correct
The metal that shows the highest and maximum number of oxidation states is:
(A)Fe
(B)Mn
(C)Ti
(D)Co
Q47·ChemistrySingle correct
An organic compound has 42.1% carbon, 6.4% hydrogen and the remainder oxygen. If its molecular weight is 342, then its molecular formula is:
Given below are two statements:
Statement I: Bromination of phenol in a solvent with low polarity such as CHCl3 or CS2 requires a Lewis acid catalyst.
Statement II: The Lewis acid catalyst polarises the bromine to generate Br+.
In the light of the above statements, choose the correct answer from the options given below:
(A)Statement I is true but Statement II is false
(B)Both Statement I and Statement II are true
(C)Both Statement I and Statement II are false
(D)Statement I is false but Statement II is true
Q49·ChemistrySingle correct
Molar ionic conductivities of a divalent cation and anion are 57S cm2mol−1 and 73S cm2mol−1 respectively. The molar conductivity of a solution of an electrolyte with the above cation and anion will be:
(A)65S cm2mol−1
(B)130S cm2mol−1
(C)187S cm2mol−1
(D)260S cm2mol−1
Q50·ChemistrySingle correct
The number of neutrons present in the more abundant isotope of boron is 'x'. Amorphous boron upon heating with air forms a product in which the oxidation state of boron is 'y'. The value of x+y is:
(A)4
(B)6
(C)3
(D)9
Q51·ChemistryNumerical
The value of the Rydberg constant RH is 2.18×10−18 J. The velocity of an electron of mass 9.1×10−31 kg in Bohr's first orbit of the hydrogen atom is ___ ×106ms−1 (nearest integer).
Q52·ChemistryNumerical
In a borax bead test under hot condition, a metal salt (one from the given) is heated at point B of the flame (shown in the figure), resulting in a green-coloured bead. The spin-only magnetic moment value of the salt is ___ (nearest integer). [Given atomic numbers: Cu = 29, Ni = 28, Mn = 25, Fe = 26]
Q53·ChemistryNumerical
The heat of combustion of solid benzoic acid at constant volume is −321.30 kJ at 27∘C. The heat of combustion at constant pressure is (−321.30−xR) kJ. The value of x is ___.
Consider the reaction sequence: phenol reacts with concentrated H2SO4 to give Product A, which then reacts with concentrated HNO3 to give Product B. The total sum of oxygen atoms in Product A and Product B is ___.
Q55·ChemistryNumerical
The spin-only magnetic moment value of the ion among Ti2+, V2+, Co3+ and Cr2+ that acts as a strong oxidising agent in aqueous solution is ___ BM (nearest integer). (Given atomic numbers: Ti = 22, V = 23, Cr = 24, Co = 27)
Q56·ChemistryNumerical
During the kinetic study of the reaction 2A+B→C+D, the following results were obtained: (I) [A]=0.1, [B]=0.1, rate =6.0×10−3; (II) [A]=0.3, [B]=0.2, rate =7.2×10−2; (III) [A]=0.3, [B]=0.4, rate =2.88×10−1; (IV) [A]=0.4, [B]=0.1, rate =2.40×10−2 (all rates of formation of D, in M s−1). Based on the above data, the overall order of the reaction is ___.
Q57·ChemistryNumerical
An artificial cell is made by encapsulating a 0.2 M glucose solution within a semipermeable membrane. The osmotic pressure developed when the artificial cell is placed within a 0.05 M solution of NaCl at 300 K is ___ ×10−1 bar (nearest integer). [Given R=0.083L bar mol−1K−1; assume complete dissociation of NaCl.]
Q58·ChemistryNumerical
From the following monohalobenzenes — fluorobenzene, chlorobenzene, bromobenzene, iodobenzene and astatobenzene — the number that can be prepared by Sandmeyer's reaction is ___.
Q59·ChemistryNumerical
In the Lewis dot structure for NO2−, the total number of valence electrons around nitrogen is ___.
Q60·ChemistryNumerical
9.3 g of pure aniline is treated with bromine water at room temperature to give a white precipitate of the product 'P'. The mass of product 'P' obtained is 26.4 g. The percentage yield is ___ %.
Mathematics — JEE Main 5 April 2024 Shift 1
Q61·MathematicsSingle correct
Let d be the distance of the point of intersection of the lines 3x+6=2y=1z+1 and 4x−7=3y−9=2z−4 from the point (7,8,9). Then d2+6 is equal to:
(A)72
(B)69
(C)75
(D)78
Q62·MathematicsSingle correct
Let a rectangle ABCD of sides 2 and 4 be inscribed in another rectangle PQRS such that the vertices of the rectangle ABCD lie on the sides of the rectangle PQRS. Let a and b be the sides of the rectangle PQRS when its area is maximum. Then (a+b)2 is equal to:
(A)72
(B)60
(C)80
(D)64
Q63·MathematicsSingle correct
Let two straight lines drawn from the origin O intersect the line 3x+4y=12 at the points P and Q such that ΔOPQ is an isosceles triangle and ∠POQ=90∘. If l=OP2+PQ2+QO2, then the greatest integer less than or equal to l is:
(A)44
(B)48
(C)46
(D)42
Q64·MathematicsSingle correct
If y=y(x) is the solution of the differential equation dxdy+2y=sin(2x), y(0)=43, then y(8π) is equal to:
(A)e−π/8
(B)e−π/4
(C)eπ/4
(D)eπ/8
Q65·MathematicsSingle correct
For the function f(x)=sinx+3x−π2(x2+x), where x∈[0,2π], consider the following two statements: (I) f is increasing in (0,2π). (II) f′ is decreasing in (0,2π). Between the above two statements,
(A)only (I) is true.
(B)only (II) is true.
(C)neither (I) nor (II) is true.
(D)both (I) and (II) are true.
Q66·MathematicsSingle correct
If the system of equations 11x+y+λz=−5, 2x+3y+5z=3, 8x−19y−39z=μ has infinitely many solutions, then λ4−μ is equal to:
(A)49
(B)45
(C)47
(D)51
Q67·MathematicsSingle correct
Let A={1,3,7,9,11} and B={2,4,5,7,8,10,12}. Then the total number of one-one maps f:A→B, such that f(1)+f(3)=14, is:
If the function f(x)=x3sin3x+αsinx−βcos3x, x∈R, is continuous at x=0, then f(0) is equal to:
(A)2
(B)−2
(C)4
(D)−4
Q69·MathematicsSingle correct
The integral ∫0π/43sinx+5cosx136sinxdx is equal to:
(A)3π−50loge2+20loge5
(B)3π−25loge2+10loge5
(C)3π−10loge(22)+10loge5
(D)3π−30loge2+20loge5
Q70·MathematicsSingle correct
The coefficients a,b,c in the quadratic equation ax2+bx+c=0 are chosen from the set {1,2,3,4,5,6,7,8}. The probability of this equation having repeated roots is:
(A)2563
(B)1281
(C)641
(D)1283
Q71·MathematicsSingle correct
Let A and B be two square matrices of order 3 such that ∣A∣=3 and ∣B∣=2. Then ATA(adj(2A))−1(adj(4B))(adj(AB))−1AAT is equal to:
(A)64
(B)81
(C)32
(D)108
Q72·MathematicsSingle correct
Let a circle C of radius 1 and closer to the origin be such that the lines passing through the point (3,2) and parallel to the coordinate axes touch it. Then the shortest distance of the circle C from the point (5,5) is:
(A)22
(B)5
(C)42
(D)4
Q73·MathematicsSingle correct
Let the line 2x+3y−k=0, k>0, intersect the x-axis and y-axis at the points A and B, respectively. If the equation of the circle having the line segment AB as a diameter is x2+y2−3x−2y=0 and the length of the latus rectum of the ellipse x2+9y2=k2 is nm, where m and n are coprime, then 2m+n is equal to:
(A)10
(B)11
(C)13
(D)12
Q74·MathematicsSingle correct
Consider the following two statements:
Statement I: For any two non-zero complex numbers z1,z2, (∣z1∣+∣z2∣)∣z1∣z1+∣z2∣z2≤2(∣z1∣+∣z2∣) and
Statement II: If x,y,z are three distinct complex numbers and a,b,c are three positive real numbers such that ∣y−z∣a=∣z−x∣b=∣x−y∣c, then y−za2+z−xb2+x−yc2=1. Between the above two statements,
(A)both Statement I and Statement II are incorrect.
(B)Statement I is incorrect but Statement II is correct.
(C)Statement I is correct but Statement II is incorrect.
(D)both Statement I and Statement II are correct.
Q75·MathematicsSingle correct
Suppose θ∈[0,4π] is a solution of 4cosθ−3sinθ=1. Then cosθ is equal to:
(A)(36−2)4
(B)(36−2)6−6
(C)(36+2)6+6
(D)(36+2)4
Q76·MathematicsSingle correct
If 1+21+2+31+…+99+1001=m and 1⋅21+2⋅31+…+99⋅1001=n, then the point (m,n) lies on the line:
Let f(x)=x5+2x3+3x+1, x∈R, and g(x) be a function such that g(f(x))=x for all x∈R. Then g′(7)g(7) is equal to:
(A)7
(B)42
(C)1
(D)14
Q78·MathematicsSingle correct
If A(1,−1,2), B(5,7,−6), C(3,4,−10) and D(−1,−4,−2) are the vertices of a quadrilateral ABCD, then its area is:
(A)1229
(B)2429
(C)247
(D)487
Q79·MathematicsSingle correct
The value of ∫−ππ1+cos2y2y(1+siny)dy is:
(A)π2
(B)2π2
(C)2π
(D)2π2
Q80·MathematicsSingle correct
If the line 32−x=4λ+13y−2=4−z makes a right angle with the line 3μx+3=61−2y=75−z, then 4λ+9μ is equal to:
(A)13
(B)4
(C)5
(D)6
Q81·MathematicsNumerical
From a lot of 10 items, which include 3 defective items, a sample of 5 items is drawn at random. Let the random variable X denote the number of defective items in the sample. If the variance of X is σ2, then 96σ2 is equal to ___.
Q82·MathematicsNumerical
If the constant term in the expansion of (1+2x−3x3)(23x2−3x1)9 is p, then 108p is equal to ___.
Q83·MathematicsNumerical
The area of the region enclosed by the parabolas y=x2−5x and y=7x−x2 is ___.
Q84·MathematicsNumerical
The number of ways of getting a sum 16 on throwing a dice four times is ___.
Q85·MathematicsNumerical
If S={a∈R:∣2a−1∣=3[a]+2{a}}, where [t] denotes the greatest integer less than or equal to t and {t} represents the fractional part of t, then 72a∈S∑a is equal to ___.
Q86·MathematicsNumerical
Let f be a differentiable function in the interval (0,∞) such that f(1)=1 and t→xlimt−xt2f(x)−x2f(t)=1 for each x>0. Then 2f(2)+3f(3) is equal to ___.
Q87·MathematicsNumerical
Let a1,a2,a3,… be in an arithmetic progression of positive terms. Let Ak=a12−a22+a32−a42+…+a2k−12−a2k2. If A3=−153, A5=−435 and a12+a22+a32=66, then a17−A7 is equal to ___.
Q88·MathematicsNumerical
Let a=i^−3j^+7k^, b=2i^−j^+k^ and c be a vector such that (a+2b)×c=3(c×a). If a⋅c=130, then b⋅c is equal to ___.
Q89·MathematicsNumerical
The number of distinct real roots of the equation ∣x∣∣x+2∣−5∣x+1∣−1=0 is ___.
Q90·MathematicsNumerical
Suppose AB is a focal chord of the parabola y2=12x of length l and slope m<3. If the distance of the chord AB from the origin is d, then ld2 is equal to ___.
Chapters tested in this paper
Open any chapter to practise every past-year question on that topic across all papers, and see how often it has actually appeared.
Take the 5 April 2024 Shift 1 paper as a timed mock and Jarvis marks it, then tells you which errors were conceptual gaps, which were silly mistakes, and which pattern you have now repeated. Step-by-step solutions for every question included.